I've read the Kay Griggs stuff. It's incredible, and it fills in a lot of missing pieces...about how people within the military hierarchy are corrupted and then controlled through extortion and fear of exposure.
The glue that holds the "shadow government" together. Same idea as Freemasonry and the Illuminati: you only have to control a few key players in order to seize control and maintain authority.
You can't get ahead and advance through the ranks without getting dirty. Once you're dirty, you are neutralized.